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COOH-PEG4-COOtBu - CAS 1835759-85-7

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COOH-PEG4-COOtBu is a PEG linker containing a t-butyl-protected carboxyl group and a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

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Molecular Formula
C16H30O8
Molecular Weight
350.41

COOH-PEG4-COOtBu

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DCM, DMF, DMSO, Water
        Appearance
        Pale Yellow or Colorless Oily Matter
        Storage
        Store at 2-8°C
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        3-[2-[2-[2-[3-[(2-methylpropan-2-yl)oxy]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        Acid-PEG4-t-butyl ester; Acid-PEG4-C2-Boc; COOH-PEG4-OtBu; HOOCCH2CH2O-PEG3-CH2CH2COOtBu; 2,2-Dimethyl-4-oxo-3,7,10,13,16-pentaoxanonadecan-19-oic acid; 4,7,10,13-Tetraoxahexadecanedioic acid, 1-(1,1-dimethylethyl) ester; 4,7,10,13-Tetraoxahexadecane-1,16-dioic acid, mono(1,1-dimethylethyl) ester
    • Properties
      • Boiling Point
        460.1±40.0°C (Predicted)
        Density
        1.107±0.06 g/cm3 (Predicted)
        InChI Key
        LXMHKDZTUDTSCT-UHFFFAOYSA-N
        InChI
        InChI=1S/C16H30O8/c1-16(2,3)24-15(19)5-7-21-9-11-23-13-12-22-10-8-20-6-4-14(17)18/h4-13H2,1-3H3,(H,17,18)
        Canonical SMILES
        CC(C)(C)OC(=O)CCOCCOCCOCCOCCC(=O)O
Bio Calculators
Stock concentration: *
Desired final volume: *
Desired concentration: *

L

* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
g/mol
g
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